Options for cushion between chassis and subframe

[glennm01]

What material is considered the best for the layer of cushion between chassis rails and subframe? I've seen HDPE mentioned, and also high density polyurethane, which I'm pretty sure isn't the same thing. If so, any good reasons to pick one over the other? And is there anything else one should consider?

 

[shortbus4x4]

Wood has been used forever.

 

[IdaSHO]

So has leather.

If I were to do it, Id go HDPE

But I much prefer a 3-point mount.

 

[glennm01]

Another question -- does the cushion material typically get fastened to the subframe or to the chassis? Or does it matter? And would an adhesive like Sikaflex 252 or equivalent be up to the job instead of fasteners?

 

[john61ct]

I much prefer a 3-point mount.

Please ELI5 what that means in this context

 

[john61ct]

Another question -- does the cushion material typically get fastened to the subframe or to the chassis? Or does it matter? And would an adhesive like Sikaflex 252 or equivalent be up to the job instead of fasteners?

yes, hundreds of good adhesives.

Bound within say a quad U-bolt not even that should be needed.

 

[glennm01]

This is for a Fuso build, so it'll be 3 spring mounts on each side, with the rear of the frame rigidly bolted to the subframe. No U-bolts, as a result. Is adhesive still viable?

 

[IdaSHO]

Please ELI5 what that means in this context

pivoting frames and mounting campers

hey doug here you go ; ) look forward to seeing you at the expo cheers lehel and laura

expeditionportal.com

Also, just realized that this thread didnt specifically mention a spring mount subframe.
Disregard, if this is "hard" mounted with pads between

 

[john61ct]

Wow, too fancy for me

 

[Mike W.]

UHMW..Ulta strong and flexible. I use it on utility bed upgrades..

 

[john61ct]

just don't try to glue it